摘要:
A printing press includes an impression cylinder (48,49), a blanket cylinder (51), a collecting plate cylinder (52), a collecting blanket cylinder (53), a plurality of partial plate cylinders (55), a plurality of inking devices (56), and a dampening unit (54). The impression cylinder holds and transports a sheet (42). The blanket cylinder (51) is in contact with the impression cylinder (48,49). The collecting plate cylinder (52) is in contact with the blanket cylinder, and a lithographic printing plate (52a) is mounted on the collecting plate cylinder. The collecting blanket cylinder (53) is in contact with the collecting plate cylinder. The plurality of partial plate cylinders (55) are in contact with the collecting blanket cylinder. The plurality of inking devices (56) supply ink to the plurality of partial plate cylinders, respectively. The dampening unit (54) supplies dampening water to the collecting plate cylinder.
摘要:
Die Erfindung betrifft eine Bogendruckmaschine zum Bedrucken von in Bogenform durch jene Maschine geführtem Bedruckstoff. Insbesondere betrifft die Erfindung hierbei eine Bogendruckmaschine durch welche auch bei hohen Druckgeschwindigkeiten eine hohe Druckqualität erreicht werden kann. Der Erfindung liegt die Aufgabe zugrunde, Lösungen zu schaffen durch welche eine hohe Druckqualität bei hohen Druckgeschwindigkeiten in einer apparatetechnisch insgesamt günstig realisierbaren Weise gewährleistet werden kann. Diese Aufgabe wird erfindungsgemäß gelöst indem bei jener Bogendruckmaschine ein Vorgreifer und vorzugsweise auch eine Anleger- oder Übergabetrommel über eigenständiges Anlageantriebssystem betrieben werden und die Synchronisation des Anlageantriebssystems mit dem Zylinderzug unter Abschottung von Lastmomentschwankungen des Anlageantriebssystems von dem Zylinderzug erfolgt.
摘要:
The object of the invention is to avoid registration problems in a sheet-fed offset rotary press for high-quality colour printing requiring minimum space. For that purpose the rotary press has two form cylinders (33, 34) and two impression cylinders (21, 22) with in each case at least two printing surfaces (36, 37, 38, 39) that cooperate with a printing cylinder (14) that has one printing surface more than a form cylinder (33, 34), and the sheets (97, 98, 99) are removed from the printing cylinder (14) only after printing is completely finished.
摘要:
In order to print identification marks (200, 200') in the exact target position on a value or security document (100), the invention relates to a printing forme device (700) for applying identification marks (200, 200') to a printing stock (105). Said device (700) comprises at least one numbering unit (800) which is arranged on a rotatable holding element (710) and the position of which on the rotatable holding element (710) is adjustable. According to the invention, (a) at least one identification mark (200, 200') is printed onto the printing stock (105); (b) the position of the at least one identification mark (200, 200') on the printing stock (105) is ascertained; (c) the ascertained position of the at least one identification mark (200, 200') is compared with a target position; and (d) the position of the at least one numbering unit (800) on the rotatable holding element (710) is adjusted.
摘要:
A conveyor that is disposed at a printing unit of a box making machine and conveys a corrugated sheet 10a that is to undergo printing, includes: a conveyor belt 23 having a conveying face that conveys the corrugated sheet; a suction box 24a that is disposed at a side of a back 23b of the conveying face of the conveyor belt and that suctions the corrugated sheet onto the conveying face with negative pressure; a plurality of guide rolls that guide or drive the conveyor belt. Air blowing means is disposed on the back side of the conveyor belt within a region from an outlet roll to an inlet roll of the guide rolls and blows air to an outside.
摘要:
A stamp cylinder (23), a number cylinder (25,27) and a paper discharge cylinder (29) are respectively arranged with respect to an impression cylinder (22) so that a transfer distance (L1) of a sheet paper (100) which is performed by the impression cylinder (22) between an oppositely contacting position between the stamp cylinder (23) and the impression cylinder (22) and an oppositely contacting position between the number cylinder (25) and the impression cylinder (22) has a length equal to or more than a length (L0) in a transfer direction of a printing surface of the sheet paper (100)(L1 ≧ L0), a transfer distance (L2) of the sheet paper (100) which is performed by the impression cylinder (22) between an oppositely contacting position between the number cylinder (27) and the impression cylinder (22) and an oppositely contacting position between the paper discharge cylinder (29) and the impression cylinder (22) has a length equal to or more than a length (L0) in the transfer direction of the printing surface of the sheet paper (100)(L2 ≧L0), and a transfer distance (L3) of the sheet paper (100) which is performed by the impression cylinder (22) between the oppositely contacting position between the stamp cylinder (23) and the impression cylinder (22) and the oppositely contacting position between the number cylinder (27) and the impression cylinder (22) has a length equal to or less than a length (La + 2Lb) obtained by adding a length Lb of an effective surface of the impression cylinder (22) to twice a length Lb of a notch portion (L3≦La + 2Lb). In accordance with this construction, a printing machine which can restrict a loss of a sheet-like material as much as possible is obtained.
摘要:
There is described a sheet-fed rotary printing press (100; 200; 300) for the production of banknotes and like securities comprising at least one printing form cylinder (115, 125; 215; 315, 325). A nominal diameter (D) of the at least one printing form cylinder (115, 125; 215; 315, 325) substantially corresponds to an integer multiple of a reference diameter of a one-segment cylinder (103a, 103c, ...) as used for printing onto super-format sheets. An axial length (AL) of the at least one printing form cylinder (115, 125; 215; 315, 325) is comparatively greater than a nominal axial length of a corresponding printing form cylinder as used for printing onto super-format sheets, by an amount such that the at least one printing form cylinder (115, 125; 215; 315, 325) is suitable for printing onto large-format sheets having a comparatively greater width (W) than a width of super-format sheets. A circumferential length (SL) of each segment of the at least one printing form cylinder (115, 125; 215; 315, 325) is comparatively greater than a nominal circumferential length of each segment of a corresponding printing form cylinder as used for printing onto super-format sheets, by an amount such that the at least one printing form cylinder (115, 125; 215; 315, 325) is suitable for printing onto large-format sheets having a comparatively greater length (L) than a length of super-format sheets.
摘要:
Bei einer Bogenrotationsdruckmaschine für Mehrfarbendruck höchster Qualität besteht die Aufgabe darin, Passerprobleme zu vermeiden und nur minimalen Bauraum zu benötigen. Erfindungsgemäß wird dies durch zwei Form- (33,34) und Gummizylinder (21,22) mit mindestens jeweils zwei Druckflächen (23,24,26,27;36,37,38,39) erreicht, die mit einem zentralen Druckzylinder (14), der eine Druckfläche mehr als ein Formzylinder (33,34) aufweist, zusammenwirken und jeder Druckfläche (36,37,38,39) ein Kurzfarbwerk (49,51,52,53) zugeordnet ist.